EP3010186A1 - Tunnelverwaltungsverfahren, tunnelverwaltungsvorrichtung und kommunikationssystem - Google Patents

Tunnelverwaltungsverfahren, tunnelverwaltungsvorrichtung und kommunikationssystem Download PDF

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Publication number
EP3010186A1
EP3010186A1 EP15192231.7A EP15192231A EP3010186A1 EP 3010186 A1 EP3010186 A1 EP 3010186A1 EP 15192231 A EP15192231 A EP 15192231A EP 3010186 A1 EP3010186 A1 EP 3010186A1
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EP
European Patent Office
Prior art keywords
node
tunnel management
request
failure
management request
Prior art date
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Granted
Application number
EP15192231.7A
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English (en)
French (fr)
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EP3010186B1 (de
Inventor
Yu Yin
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Nokia Technologies Oy
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Huawei Technologies Co Ltd
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Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0766—Error or fault reporting or storing
    • G06F11/0772—Means for error signaling, e.g. using interrupts, exception flags, dedicated error registers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H04L12/6418—Hybrid transport
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0677—Localisation of faults
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0823—Errors, e.g. transmission errors
    • H04L43/0847—Transmission error
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2212/00—Encapsulation of packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure

Definitions

  • the present invention relates to the field of communications network technologies, and in particular, to a tunnel management method, a tunnel management apparatus, and a communications system in a communications network.
  • a forwarding path In an existing packet-switched communications network, a forwarding path must be set up between network nodes to forward service packets.
  • a forwarding path is implemented through a tunnel management procedure, and is created or updated between network elements through a tunnel management request.
  • the tunnel management request fails for certain reasons. For example, an error occurs in the request message or resources of an associated network node are exhausted.
  • a cause value is generally used to indicate the processing result of the tunnel management request. The cause value indicates whether the processing of the tunnel management request succeeds or fails and indicates the reason of failure when the tunnel management request fails.
  • EPS evolved packet system
  • MME mobility management entity
  • PDN-GW packet data network gateway
  • S-GW serving gateway
  • a mobile terminal initiates a mobility management or session management procedure that includes a tunnel management request, such as an E PS attach, routing area update, tracking area update, handover, or external PDN connectivity procedure
  • the MME sends a tunnel management request and the S-GW and PDN-GW cooperate to process the tunnel management request.
  • the S-GW will send a response which includes a cause value to the MME, indicating the processing result to the M M E .
  • the node that initiates the tunnel management request receives a response but cannot determine the error of which node has caused the tunnel management request failure according to the response. As a result, the node that initiates the tunnel management request cannot perform processing accordi ng to the tunnel management failure caused by different nodes.
  • the present invention provides a tunnel management method, a tunnel management apparatus, and a communications system, which enable a node that initiates a tunnel management request to correctly determine the node that has caused the tunnel management request failure and perform processing accordingly.
  • a tunnel management method includes:
  • a tunnel management apparatus includes:
  • a tunnel management apparatus includes:
  • a communications system includes:
  • the initiating node because the response message received by the initiating node includes node information and the initiating node can find the node that causes failure of a tunnel management request according to the node information, even if the tunnel management node further sends the tunnel management request to a remote node, the initiating node is able to distinguish whether the tunnel management request failure is caused by the tunnel management node or the remote node according to the node information. Thus, the initiating node can process the tunnel management request failure more conveniently, more efficiently, and more quickly.
  • the present invention solves the problem in the prior art that an initiating node in a conventional communications system is unable to determine which node has caused the error and therefore fails to perform effective processing.
  • FIG. 1 shows an evolved packet system (E PS) network according to an embodiment of the present invention.
  • the EPS network includes a mobile terminal, a radio access network, a serving gateway (S-GW), a mobility management element, a packet data network gateway (PDN-GW or P-GW), and a policy control entity.
  • the mobility management element is a mobility management entity (MME)
  • MME mobility management entity
  • the signaling exchanged between the MME and the PDN-GW must cross the S-GW.
  • the mobility management element is a serving GPRS support node (SGSN)
  • the SGSN may also send a tunnel management request to the S-GW and cooperate with the S-GW to process a tunnel management request initiated by the PDN-GW.
  • SGSN serving GPRS support node
  • the first embodiment relates to a tunnel management method. As shown in FIG. 2 , the method includes the following steps:
  • the embodiment provides another tunnel management method. As shown in FIG. 3 , the method includes the following steps:
  • the embodiment of the present invention provides a tunnel management apparatus.
  • the apparatus includes a receiving unit 41 and a sending unit 42.
  • the receiving unit 41 is configured to receive the tunnel management request from the initiating node.
  • the sending unit 42 is configured to send a response that includes node information to the initiating node.
  • the node information is information of the node that causes the tunnel management request failure so that the initiating node can find the node that causes the tunnel management request failure accordi ng to the node i nformati on.
  • the embodiment of the present invention provides a tunnel management apparatus.
  • the apparatus includes a sending unit 51, a receiving unit 52, and a searchi ng unit 53.
  • the sending unit 51 is configured to send a tunnel management request to a tunnel management node, which returns a response that includes node information to the apparatus after processing the tunnel management request.
  • the receiving unit 52 is configured to receive the response that includes node information returned by the tunnel management node.
  • the searchi ng node 53 is configured to fi nd the node that causes the tunnel management request failure accordi ng to the node i nformati on.
  • the embodiment also provides a communications system.
  • the communications system includes an initiating node 61 and a tunnel management node 62.
  • the initiating node 61 when it is necessary to manage a user plane forwarding path, the initiating node 61 is configured to send a tunnel management request; the tunnel management node 62 is configured to receive the tunnel management request from the initiating node 61 and return a response that includes node information to the initiating node 61; the initiating node 61 is further configured to find the node that causes the tunnel management request failure according to the node information and perform processing accordingly afterwards, for example, select an effective error check direction or select a new node.
  • the error check is: checking whether the error is caused by the local equipment implementation when the error cause included in the received response is an information element (IE) related error with the value such as "IE missing" or "IE decodes error” and checking the equipment implementation of the error node indicated in the response message when the local equipment implementation is correct. This helps the node to locate the error cause quickly and thus assures the correct proceeding of the subsequent procedure.
  • IE information element
  • the embodiment of the present invention determines whether the failure of a tunnel management request is caused by the tunnel management node or a remote node according to the node information so that the initiating node can process the tunnel management request failure more conveniently, more efficiently and more quickly.
  • FIG. 7 shows the processing of the network in a attach procedure in EPS network, especially when a tunnel management request fails.
  • the method includes the following steps:
  • steps 702 and 703 are optional.
  • the response returned in the step may further include additional location information to identify the reason of the Create Default Bearer Request failure.
  • the interface protocol between S-GW and P-GW in the embodiment communicate is the GPRS Tunneling Protocol (GTP).
  • GTP GPRS Tunneling Protocol
  • the S-GW and P-GW may communicate over the Proxy Mobile IP Protocol (PMIP), in which case step 712 and step 713 above are modified as follows:
  • the MME can know the node that causes the Create Default Bearer Request failure.
  • the MME can adjust the node that causes the failure i n ti me so that the subsequent procedure is performed correctly.
  • the embodiment is applicable to a tracking area update procedure.
  • the processing on the network side includes the following steps:
  • the response returned in the step may further include additional location information to identify the reason of the Update Bearer Request failure.
  • the processing is similar to that shown in FIG. 9 and the only difference is that the functions completed by the old S-GW are completed by the new S-GW, as shown by the broken lines.
  • the step where the new MME obtains a context is the same as steps 901 and 902.
  • the new MME decides whether to select a new S-GW. If a new S-GW is selected, the new MME sends a Create Bearer Request to the new S-GW. If the new S-GW processes the Create Bearer Request correctly, the new S-GW sends an Update Bearer Request to the P-GW; otherwise, the new S-GW returns to the new MME a Create Bearer Response, which includes node information of the new S-GW, indicating that the bearer update failure is caused by the new S-GW. After processing the Update Bearer Request, the P-GW returns an Update Bearer Response to the new S-GW.
  • the P-GW fails to process the Update Bearer Request, the P-GW returns to the new S-GW an Update Bearer Response that includes an error cause.
  • the new S-GW also sends a Create Bearer Response to the new MME.
  • the response message received from the P-GW indicates processing failure, the response returned to the new MME includes node information of the P-GW, indicating that the bearer update failure is caused by the P-GW.
  • routing area update scenarios with respect to a routing area update request from a UE, the following two cases may exist:
  • the UE sends a Routing Area Update Request to the new SGSN.
  • the new SGSN obtai ns a context from the old SGS N and afterwards sends a Create Bearer Request to the new S-GW. If the new S-GW processes the Create Bearer Request correctly, the new S-GW sends an Update Bearer Request to the P-GW; otherwise, the new S-GW sends to the new SGSN a Create Bearer Response which includes node information of the new S-GW, indicating that the bearer creation failure is caused by the new S-GW. After processing the Update Bearer Request, the P-GW returns to the new S-GW an Update Bearer Response which indicates processing success or failure with a cause value.
  • the P-GW fails to process the Update Bearer Request, the P-GW returns to the new S-GW an Update Bearer Response that indicates failure.
  • the new S-GW also sends a Create Bearer Response to the new SGSN and when the message returned by the P-GW indicates processing failure, the message returned to the new SGSN includes node information of the P-GW, indicating that the bearer creation failure is caused by the P-GW.
  • the S-GW does not change.
  • the old SGSN acts as the initiating node of the Routing Area Update Request
  • the old S-GW acts as the tunnel management node of the Routing Area Update Request
  • the P-GW acts as the remote node. The procedure is shown by the broken lines in FIG. 10 .
  • the UE sends a Routing Area Update Request to the old SGSN.
  • the old SGSN sends an Update Bearer Request to the old S-GW. If the old S-GW processes the Update Bearer Request correctly, the old S-GW sends an Update Bearer Request to the P-GW; otherwise, the old S-GW returns to the old SGSN an Update Bearer Response, which includes node information of the old S-GW, indicating that the bearer update failure is caused by the old S-GW. After processing the Update Bearer Request, the P-GW returns to the old S-GW an Update Bearer Response which indicates processing success or failure with a cause value. If the P-GW fails to process the Update Bearer Request, the P-GW returns to the old S-GW an Update Bearer Response that indicates failure.
  • the old S-GW also sends an Update Bearer Response to the old SGSN and when the message returned by the P-GW indicates processing failure, the message returned to the old SGSN includes node i nformati on of the P-GW, i ndi cati ng that the bearer update failure is caused by the P-GW.
  • the method in the embodiment can indicate the node that causes failure of tracking area update or routing area update in a tracking area update or routing area update procedure so that the node causing the tracking area update or routing area update failure is adjusted in time and that the subsequent procedure proceeds correctly.
  • the scenario of the fourth embodiment is the handover from an evolved UMTS territorial radio access network (E-UTRAN) to a UMTS territorial radio access network (UTRAN).
  • E-UTRAN evolved UMTS territorial radio access network
  • UTRAN UMTS territorial radio access network
  • the response returned in the step may further include additional location information to identify the specific reason of the Update Bearer Requestfailure.
  • the method in the embodiment of the present invention indicates whether the node that causes a bearer update failure is the target S-GW or P-GW during the handover from an E-UTRAN to a UTRAN, so that the target SGSN can adjust the node causing the bearer update failure in time and that the subsequent procedure will proceed correctly.
  • the scenario of the fifth embodiment is a PDN connectivity procedure. As shown in FIG. 12 , when the procedure fails, the method includes the following steps:
  • the node information may be indicated by a field in the cause of failure of the tunnel management request, or an IE in the response message.
  • the response returned in steps 1208 and 1209 may further include additional location information to identify the reason of the Create Default Bearer Request failure.
  • the additional location information may be indicated by a field in the cause of the failure of the tunnel management request, or an IE in the response message.
  • the node i nformati on may be i ndi cated by a f i el d i n the cause of the failure of the tunnel management request, or an IE in the response message.
  • the response returned in the step may further include additional location information to identify the specific reason of the Create Default Bearer Request failure.
  • the additional location information may be the additional location information included in the response received by the S-GW.
  • the additional location information may also be indicated by a field in the cause of the failure of the tunnel management request, or an IE in the response message.
  • the method in the embodi ment of the present invention can indicate whether the node causing the PDN connectivity failure is the S-GW, P-GW, or PCRF, so that the MME can adjust the node causing the PDN connectivity failure and that the subsequent procedure can proceed correctly.
  • the scenario of the sixth embodiment is the bearer creation initiated by the P-GW.
  • the method for indicating the bearer creation failure includes the following steps:
  • the response returned in the step may further include additional location information to identify the reason of the Create Dedicated Bearer Request failure.
  • the additional location information may also be indicated by a field in the cause of the failure of the tunnel management request, or an IE in the response message.
  • the method in the embodiment of the present invention can indicate whether the node causing the dedicated bearer creation failure is the S-GW, MME, or eNodeB, so that the P-GW can adjust the node causing the dedicated bearer creation failure and that the subsequent procedure can proceed correctly.
  • the embodiment of the present invention provides a tunnel management apparatus. As shown in FIG. 14 , the apparatus includes a receiving unit 141 and a sending unit 142.
  • the receiving unit 141 is configured to receive a tunnel management request from an initiating node; when the tunnel management request of the initiating node is processed unsuccessfully, the sending unit 142 is configured to send to the initiating node a response, which includes node information of the node that causes the tunnel management request failure.
  • the node that causes the tunnel management request failure may be the local node or a remote node.
  • the sending unit 142 includes a determining module 1421 and a sending module 1422.
  • the determining module 1421 is configured to determine whether the local node is able to complete the tunnel management request.
  • the sending module 1422 is configured to send to the initiating node a response message which includes a cause value of failure of the tunnel management request and local node information when the determining module 1421 determines that the local node is unable to complete the tunnel management request, where the local node information is the node information of the node that causes the tunnel management request failure.
  • the response received by the receiving unit 141 in the embodiment may also include additional location information, identifying the specific reason of the tunnel management request failure.
  • the additional location information may indicate which IE is missing or incorrectly decoded and which mandatory IE is missing.
  • the response sent by the sending unit 142 in the embodiment to the initiating node may also include the additional location information so that the initiating node can find the correct failure cause.
  • the tunnel management apparatus in the embodiment of the present invention may be configured in many network devices, such as the S-GW, P-GW, MME, and SGSN.
  • the embodiment of the present invention provides another tunnel management apparatus.
  • the apparatus includes a sending unit 151, a receiving unit 152, and a searching unit 153.
  • the sending unit 151 is configured to send a tunnel management request to the tunnel management node. After the tunnel management node processes the tunnel management request, the tunnel management node returns a tunnel management response to the apparatus. If the processing is unsuccessful, the response returned to the apparatus includes node information and additional location information.
  • the node information identifies the node that causes the tunnel management request failure.
  • the additional location information identifies the specific reason of the tunnel management request failure.
  • the receiving unit 152 is configured to receive the response that includes node information returned by the tunnel management node.
  • the searching unit 153 is configured to find the node that causes the tunnel management request failure according to the node information and find the specific reason of the tunnel management request failure accordi ng to the additional location information to facilitate the error checking.
  • the tunnel management apparatus further includes a processing unit 154.
  • the processing unit 154 is configured to select a new node to replace the node that causes the tunnel management request failure when the cause of the tunnel management request failure is resource insufficiency or equipment failure; or the processing unit 154 is configured to check for errors of the local node or instruct the node that causes the tunnel management request failure to check for errors when the cause of the tunnel management request failure is IE missing or IE decoded error.
  • the function of the tunnel management apparatus shown in FIG. 14 to determi ne whether the local device is able to process the request can be configured on the intermediate node or the remote node; the function of sending or transparently transmitting the error node indication to the initiating node after receiving the response from the remote node can only be implemented on the intermediate node.
  • the tunnel management apparatus shown in FIG. 15 is only configured on the initiating node.
  • the initiating node may be an MME, or a P-GW, or an SGSN.
  • the response returned by the intermediate node to the initiating node includes node information to enable the initiating node to find the node that causes the tunnel management request failure and make node adjustment accordingly, so that the subsequent procedure proceeds correctly.
  • the eighth embodiment provides a communications system.
  • the communications system includes an initiating node 161 and a tunnel management node 162.
  • the initiating node 161 is configured to send a tunnel management request to the tunnel management node 162.
  • the tunnel management node 162 is configured to receive the tunnel management request from the initiating node 161 and determine whether the tunnel management node is able to complete the tunnel management request.
  • the tunnel management node 162 If the tunnel management node 162 is unable to complete the tunnel management request, the tunnel management node 162 sends to the initiating node 161 a response which includes the cause value of the tunnel management request failure and information of the tunnel management node, i ndicati ng that the tunnel management node is the node that causes the tunnel management request failure.
  • the initiating node 161 is further configured to find the node that causes the tunnel management request failure according to the node information in the response returned by the tunnel management node and perform related error checking.
  • the above communications system generally relates to the communication between two network devices, for example, between MME and S-GW and between S-GW and P-GW.
  • the communications system in the embodiment further includes a remote node 163.
  • the tunnel management node 162 When the tunnel management node 162 is able to process the tunnel management request correctly, the tunnel management node 162 sends the tunnel management request to the remote node 163, which causes failure of the tunnel management request due to a certain reason, such as a local node error.
  • the remote node 163 is then configured to return to the tunnel management node 162 a response which includes the cause value of the tunnel management request failure.
  • the tunnel management node 162 is further configured to send to the initiating node 161 a response that includes the cause value of the tunnel management request failure and information of the remote node, indicating that the remote node is the node causing the tunnel management request failure.
  • the processing of the communications system is as follows:
  • the embodiment is applicable to a communications system with respect to various possible failure causes during the management of a user plane forwarding path and indicates the cause to the initiating node so that the initiating node performs appropriate processing.
  • the initiating node Because the response received by the initiating node includes node information and the initiating node can find the node causing the tunnel management request failure according to the node information, the initiating node will be able to distinguish whether the tunnel management request failure is caused by the tunnel management node or the remote node, even if the tunnel management node further sends the tunnel management request to the remote node. Thus, the initiating node can process the tunnel management request failure more conveniently, more efficiently, and more quickly.
  • the present invention may be implemented by hardware only or by software and a necessary universal hardware platform. However, in most cases, using software and a necessary universal hardware platform are preferred. Based on such understandings, all or part of the technical solution under the present invention that makes contributions to the prior art may be essentially embodied in the form of a software product.
  • the software product may be stored in a computer readable storage medium, such as a hard disk, a compact disk read-only memory (CD-ROM), and a floppy disk.
  • the software product includes a number of instructions that enable a computer device (personal computer, server, or network device) to execute the methods provided in the embodiments of the present invention.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
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EP15192231.7A 2008-07-16 2009-05-26 Tunnelverwaltungsverfahren, tunnelverwaltungsvorrichtung und kommunikationssystem Not-in-force EP3010186B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN2008101324214A CN101631344B (zh) 2008-07-16 2008-07-16 隧道管理方法、装置及通信系统
EP09797378.8A EP2293502B9 (de) 2008-07-16 2009-05-26 Verfahren, gerät und kommunikationssystem für tunnelverwaltung
EP12182102.9A EP2533481B1 (de) 2008-07-16 2009-05-26 Verfahren, Gerät und Kommunikationssystem für Tunnelverwaltung

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP09797378.8A Division EP2293502B9 (de) 2008-07-16 2009-05-26 Verfahren, gerät und kommunikationssystem für tunnelverwaltung
EP12182102.9A Division-Into EP2533481B1 (de) 2008-07-16 2009-05-26 Verfahren, Gerät und Kommunikationssystem für Tunnelverwaltung
EP12182102.9A Division EP2533481B1 (de) 2008-07-16 2009-05-26 Verfahren, Gerät und Kommunikationssystem für Tunnelverwaltung

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EP3010186A1 true EP3010186A1 (de) 2016-04-20
EP3010186B1 EP3010186B1 (de) 2018-05-23

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EP15192231.7A Not-in-force EP3010186B1 (de) 2008-07-16 2009-05-26 Tunnelverwaltungsverfahren, tunnelverwaltungsvorrichtung und kommunikationssystem
EP09797378.8A Not-in-force EP2293502B9 (de) 2008-07-16 2009-05-26 Verfahren, gerät und kommunikationssystem für tunnelverwaltung
EP12182102.9A Active EP2533481B1 (de) 2008-07-16 2009-05-26 Verfahren, Gerät und Kommunikationssystem für Tunnelverwaltung

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EP12182102.9A Active EP2533481B1 (de) 2008-07-16 2009-05-26 Verfahren, Gerät und Kommunikationssystem für Tunnelverwaltung

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US (4) US8938640B2 (de)
EP (3) EP3010186B1 (de)
JP (4) JP5101734B2 (de)
CN (2) CN102355686B (de)
ES (1) ES2401758T3 (de)
PL (1) PL2293502T3 (de)
WO (1) WO2010006531A1 (de)

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US20160099828A1 (en) 2016-04-07
US9235462B2 (en) 2016-01-12
JP5739508B2 (ja) 2015-06-24
JP2014039341A (ja) 2014-02-27
EP2293502A1 (de) 2011-03-09
WO2010006531A1 (zh) 2010-01-21
CN102355686A (zh) 2012-02-15
CN101631344A (zh) 2010-01-20
JP2015156712A (ja) 2015-08-27
CN102355686B (zh) 2015-08-05
JP2011528197A (ja) 2011-11-10
EP2293502A4 (de) 2011-08-10
JP5426741B2 (ja) 2014-02-26
US8938640B2 (en) 2015-01-20
EP2293502B9 (de) 2013-04-10
PL2293502T3 (pl) 2013-05-31
JP6065189B2 (ja) 2017-01-25
CN101631344B (zh) 2011-10-05
US20130117614A1 (en) 2013-05-09
US20140211611A1 (en) 2014-07-31
EP3010186B1 (de) 2018-05-23
JP2013038806A (ja) 2013-02-21
US8909975B2 (en) 2014-12-09
US20110113278A1 (en) 2011-05-12
ES2401758T3 (es) 2013-04-24
EP2533481A1 (de) 2012-12-12
JP5101734B2 (ja) 2012-12-19

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